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authorMax Reitz <mreitz@redhat.com>2017-11-09 21:30:25 +0100
committerMax Reitz <mreitz@redhat.com>2017-11-14 18:06:25 +0100
commit19026817f71c698d1acb9c85bf5544b799fc5c2c (patch)
tree09da9360af68e5d62ee915177ccd5db452935541
parentddc7093eec38c875a6a2ae18a9ecf563107d9ff0 (diff)
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iotests: Make 136 less flaky
136 executes some AIO requests without a final aio_flush; then it advances the virtual clock and thus expects the last access time of the device to be less than the current time when queried (i.e. idle_time_ns to be greater than 0). However, without the aio_flush, some requests may be settled after the clock_step invocation. In that case, idle_time_ns would be 0 and the test fails. Fix this by adding an aio_flush if any AIO request other than some other aio_flush has been executed. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20171109203025.27493-6-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
-rw-r--r--tests/qemu-iotests/13614
1 files changed, 13 insertions, 1 deletions
diff --git a/tests/qemu-iotests/136 b/tests/qemu-iotests/136
index 4b99489..88b97ea 100644
--- a/tests/qemu-iotests/136
+++ b/tests/qemu-iotests/136
@@ -238,6 +238,18 @@ sector = "%d"
for i in range(failed_wr_ops):
ops.append("aio_write %d 512" % bad_offset)
+ # We need an extra aio_flush to settle all outstanding AIO
+ # operations before we can advance the virtual clock, so that
+ # the last access happens before clock_step and idle_time_ns
+ # will be greater than 0
+ extra_flush = 0
+ if rd_ops + wr_ops + invalid_rd_ops + invalid_wr_ops + \
+ failed_rd_ops + failed_wr_ops > 0:
+ extra_flush = 1
+
+ if extra_flush > 0:
+ ops.append("aio_flush")
+
if failed_wr_ops > 0:
highest_offset = max(highest_offset, bad_offset + 512)
@@ -251,7 +263,7 @@ sector = "%d"
self.total_wr_bytes += wr_ops * wr_size
self.total_wr_ops += wr_ops
self.total_wr_merged += wr_merged
- self.total_flush_ops += flush_ops
+ self.total_flush_ops += flush_ops + extra_flush
self.invalid_rd_ops += invalid_rd_ops
self.invalid_wr_ops += invalid_wr_ops
self.failed_rd_ops += failed_rd_ops